CVE-2026-34491CWE-79cross-site-scripting

CVE-2026-34491

published August 24, 2026

CVSS
6.1
EPSS
0%
Percentile
32.6
In the wild
Unconfirmed
What it is

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Johnson Controls Metasys 14 and Johnson Controls Metasys 15 allows Cross Site Scripting.

This issue affects Metasys 14: before 14.1.5; Metasys 15: before 15.0.1.

The record
Technical detail
CVSS
6.1 · NONE
CVSS v4.0
6.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U
EPSS
0.00396 · 32.6th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-08-24T22:17Z
References (1)
https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories · [email protected]
EPSS history
Timeline
  • 26 AUG 07:56Z
    EPSS moved — → 0%
    epss
  • 24 AUG 17:24Z
    Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Johnson Controls Metasys 14 and Johnson Controls Metasys…
    cvelistv5